Jan-Ola Östman, 2011. Language contact in the North of Europe. In The languages and linguistics of Europe. A comprehensive guide (359-380), ed. by Bernd Kortmann & Johan van der Auwera [The World of Linguistics 1]. Berlin: De Gruyter Mouton.

Jan-Ola Östman, 1991. On the language-internal interaction of prosody and pragmatic particles. In Levels of linguistic adaptation [Pragmatics and Beyond New Series, 6:2] (203-221), ed. by Jef Verschueren. Amsterdam: John Benjamins.

Jan-Ola Östman, [1987] 1986. Pragmatics as Implicitness. An analysis of question particles in Solf Swedish, with implications for the study of passive clauses and the language of persuasion [Ph.D. dissertation, University of California, Berkeley, 1986]. Not published, but available from University Microfilms International, Ann Arbor, MI (no. 86 24885). 2 + x + 348 pp.

Marja Leinonen & Jan-Ola Östman, 1983. Passive patterns in Russian and Swedish. In Papers from the seventh Scandinavian conference of linguistics I (175-198), ed. by Fred Karlsson. University of Helsinki: Department of General Linguistics [Publications, no. 9].